发明申请
WO2004044252A1 METHOD FOR MANUFACTURING HIGH SILICON GRAIN-ORIENTED ELECTRICAL STEEL SHEET WITH SUPERIOR CORE LOSS PROPERTY
审中-公开
基本信息:
- 专利标题： METHOD FOR MANUFACTURING HIGH SILICON GRAIN-ORIENTED ELECTRICAL STEEL SHEET WITH SUPERIOR CORE LOSS PROPERTY
- 专利标题（中）：用于制造具有超级核心损耗特性的高硅晶粒电工钢板的方法
- 申请号：PCT/KR2003/002413 申请日：2003-11-11
- 公开(公告)号：WO2004044252A1 公开(公告)日：2004-05-27
- 发明人： CHOI, Kyu-Seung , WOO, Jong-Soo , KIM, Jae-Kwan
- 申请人： POSCO , CHOI, Kyu-Seung , WOO, Jong-Soo , KIM, Jae-Kwan
- 申请人地址： 1 Koedong-dong, Nam-ku, 790-300 Pohang, Kyungsangbook-do KR
- 专利权人： POSCO,CHOI, Kyu-Seung,WOO, Jong-Soo,KIM, Jae-Kwan
- 当前专利权人： POSCO,CHOI, Kyu-Seung,WOO, Jong-Soo,KIM, Jae-Kwan
- 当前专利权人地址： 1 Koedong-dong, Nam-ku, 790-300 Pohang, Kyungsangbook-do KR
- 代理机构： C & S PATENT AND LAW OFFICE
- 优先权： KR10-2002-0069648 20021111; KR10-2002-0074327 20021127
- 主分类号： C21D8/12
- IPC分类号： C21D8/12
摘要：
There is provided a method for manufacturing a high silicon grain-oriented electrical steel sheet. In a method for manufacturing a high silicon grain-oriented electrical steel sheet, comprising the steps of: reheating and hot-rolling a steel slab to produce a hot-rolled steel sheet; annealing the hot-rolled sheet and cold rolling the annealed steel sheet so as to adjust a thickness of the steel sheet; decarburization annealing the cold rolled steel sheet; and finish-annealing the decarburization annealed steel sheet for secondary recrystallization, the improved method further comprising the step of: coating a powder coating agent for siliconization on a surface of the decarburization annealed steel sheet in a slurry state, the powder coating agent including 100 part by weight of MgO powder and 0.5 - 120 part by weight of sintered powder of Fe-Si compound containing 25 70 wt.% Si sintered powder, the sintered powder having a grain size of -325 mesh; drying the resultant decarburization annealed steel sheet; and finish annealing the steel sheet under a conventional condition.
摘要（中）：
提供了制造高硅晶粒取向电工钢板的方法。 在制造高硅晶粒取向电工钢板的方法中，包括以下步骤：对钢坯进行再加热和热轧以制造热轧钢板; 对该热轧板进行退火，对退火后的钢板进行冷轧，调整钢板的厚度; 冷轧钢板脱碳退火; 对用于二次再结晶的脱碳退火钢板进行最终退火，该改进方法还包括以下步骤：在浆料状态下在脱碳退火钢板的表面上涂覆硅化粉末涂料，所述粉末涂料包括100份 的MgO粉末和0.5〜120重量份含有25重量％Si烧结粉末的Fe-Si化合物的烧结粉末，烧结粉末的粒径为-325目; 干燥所得脱碳退火钢板; 并在常规条件下对钢板进行最终退火。
IPC结构图谱:
| C | 化学；冶金 |
| --C21 | 铁的冶金 |
| ----C21D | 改变黑色金属的物理结构；黑色或有色金属或合金热处理用的一般设备；通过脱碳、回火或其他处理使金属具有韧性 |
| ------C21D7/00 | 通过变形改变铁或钢的物理性能 |
| --------C21D8/12 | .在生产具有特殊电磁性能的产品时 |